so clearly without doubt I am not as good as drawing as you are, this took me 20 minutes and the anatomy is all off. But I cant put into words clearly what I want to point out, and I loved the face of your model so I made a copy of your drawing. Here is what I see off. Your shading is off, you put too much emphasis in making difference in each anatomy part, I personally notice it in the abdomen area and the ankle: I am not sure where your belly button is, but I imagine it should be around that drape its wearing, but since you made so much emphasis on the dorsal muscles it looks like the (chocolate bar) abdominal muscles are off center. Also, the muscles below that drape should be darker. This is where I learned this from Proko and Gonzo, the values are important. See my image? I made a 4 value grid. 1 black, 2 grey. 3. light grey. 4 white. obviously since my drawing is bad my shading is bad, but bear with me... I shaded in 4 that part of the body, the muscles below the drape, and if you want to make the muscles popup, maybe choose a 2. and on the other side where the light hits, the muscles shade it with 3. so in the dark muscles are 1 and 2, in the light 3 and 4. Makes sense what I am saying? the ancle is similar, you made the figure of the bone protution in the ancle truly pop up beatifully, but forgot to shade that area, and sometimes you loss lines when you shade. Also, the shadow of the hand and of the face are in complety different dirrections. I shaded the head, but i didnt know where to shade the hand so i didnt in my drawing. but yours is a diagonal in the head and a vertical in the hand over the leg, and that doesnt fit. What do you think of my opinion? I am not as good as drawing as you so I hope you dont get offended. we can help each other.

The attach button is grey.